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Does the Java &= operator apply & or &&?
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From the Java Language Specification - 15.26.2 Compound Assignment Operators.
A compound assignment expression of the form E1 op= E2 is equivalent to E1 = (T)((E1) op (E2)), where T is the type of E1, except that E1 is evaluated only once.
So a &...
Force re-download of release dependency using Maven
... It doesn't require access to the file system which might be an issue if you're only configuring build jobs (for a CI system for example).
– Oliver Drotbohm
Oct 9 '14 at 15:13
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How can I remove a flag in C?
... @Dennis I thought XOR would work to remove an already set flag. notification.sound ^= Notification.DEFAULT_SOUND;
– likejudo
Apr 14 '14 at 9:56
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How do I use the new computeIfAbsent function?
I very much want to use Map.computeIfAbsent but it has been too long since lambdas in undergrad.
4 Answers
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VB.NET equivalent to C# var keyword [duplicate]
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Option Infer must be on in order for this to function properly. If so, then omitting the type in VB.NET (Visual Basic 9) will implicitly type the variable.
This is not the same as "Option Strict Off" in previous versions of VB.NET, as the variable is strongly-typed; it's just done so imp...
How to add include path in Qt Creator?
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If you are using qmake, the standard Qt build system, just add a line to the .pro file as documented in the qmake Variable Reference:
INCLUDEPATH += <your path>
If you are using your own build system, you create a pr...
How to call a method after bean initialization is complete?
... method in the bean only-once at the ApplicationContext load up. Is it ok, if I use MethodInvokingFactoryBean for this? Or we have a some better solution?
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How to restart a rails server on Heroku?
...cutable aliases
Then you can just type hra app_name
You can restart a specific remote, e.g. "staging" with:
heroku restart -a app_name -r remote_name
Alternatively if you are in the root directory of your rails application you can just type
heroku restart
to restart that app and and you can c...
Are trailing commas in arrays and objects part of the spec?
...s: ECMAScript 5 and ECMAScript 3
Section 11.1.5 in the ECMAScript 5 specification:
ObjectLiteral :
{ }
{ PropertyNameAndValueList }
{ PropertyNameAndValueList , }
So yes, it is part of the specification.
Update: Apparently this is new in ES5. In ES3 (page 41), the definition was...
用Javascript获取页面元素的位置（全） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，就代表了网页的大小。
function getViewport(){
if (document.compatMode == "BackCompat"){
return {
width: document.body.clientWidth,
height: document.body.clientHeight
}
} e...